Promoting Healthy Aging: Physical Activity and Its Dual Effects on Physical Health and Cognitive Function in Chinese Older Adults. [PDF]
Front Public HealthLi X, Li C.
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Does enhanced HIV prevention, diagnosis, and linkage to care reduce hospitalisation in high HIV-burden communities in Zambia and South Africa? findings from the HPTN 071 (PopART) randomised trial. [PDF]
PLOS Glob Public HealthBurger R +14 more
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Design of binary logarithm generators
Proceedings of the Institution of Electrical Engineers, 1968 A design method is described by which a number x, in binary code, can be used to generate the binary form of log2x. Unlike earlier methods, this does not depend on an approximation to a linear relatioqship between x and log2x. The mantissa of the logarithm can be generated with an adequate number of bits, without undue increase in the complexity of the
K.J. Dean
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A new binary logarithm-based computing system
IEE Proceedings E Computers and Digital Techniques, 1983 An approximation of the binary logarithm log2 N of any positive binary number N is derived, and the design of a fast computing system based on this approximation is presented. The speed and simplicity of the system makes it a useful tool for practical real-time applications.
G. Frangakis
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Computation of the Base Two Logarithm of Binary Numbers
IEEE Transactions on Electronic Computers, 1965 An approximation to the computation of the base two logarithm of a binary number, realized with binary circuitry, is described. It is known that the logarithm can be obtained approximately from the binary number itself by simple counting and shifting. A method for the reduction of the resulting approximation error by a factor six is given.
M. Combet, H. Van Zonneveld, L. Verbeek
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Generation of a Precise Binary Logarithm with Difference Grouping Programmable Logic Array
IEEE Transactions on Computers, 1985 The design algorithm of a differential group programmable logic array (DGPLA) to generate the precise binary logarithm function is suggested. It can reach an optimal condition such that the number of bits in a PLA is minimized, while the error is still kept as small as possible.
Hao‐Yung Lo, Aoki
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FPGA Design and Implementation of an Improved 32-bit Binary Logarithm Converter
2008 4th International Conference on Wireless Communications, Networking and Mobile Computing, 2008 This paper presents an improved 32-bit binary logarithm converter, which is optimized according to the characteristics of Xilinx Virtex4 series FPGA. The implementation in FPGA denotes that our improved method not only costs less resources but also has much higher speed. Meanwhile a novel and simple error correction method is proposed.
Zhijun Li +3 more
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An algorithm to evaluate the logarithm of a number to base 2, in binary form
Radio and Electronic Engineer, 1969 This algorithm evaluates, in binary form, log2N for a given value of N > 0 using steps which are easily reproduced by logic blocks. It is also possible to extend this to obtain 2x, the antilogarithm to base 2 of a given num ber x.
Peter Philo
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A Fast Integer Binary Logarithm of Large Arguments
IEEE Micro, 1987Simple and fast (10?), this new procedure requires no hardware and features a 10-6 approximation error.
R. Männer
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An algorithm for the computation of binary logarithms
IEEE Transactions on Computers, 1991 The author presents a simple algorithm for the computation of the base-2 logarithm of a given binary number. The concept can be easily extended to base-N. Unlike other methods, this is not a curve fitting of the base-2 logarithm of a given binary number. The algorithm constitutes a simple step-by-step, bit-by-bit, computation of the logarithm of binary
D.K. Kostopoulos
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